Can you add a query variable to a Facebook App URL? For example, I have this URL http://www.facebook.com/blahblah/app_97922829890, can I use: http://www.facebook.com/blahblah/app_97922829890/xuser/1?
I wish to display customised content for individual users on a Facebook app tab within an IFrame. Suppose I wish to send User A (who has id=1) an email with the following link: http://www.facebook.com/blahblah/app_97922829890/xuser/1 and then User B (who has id=23) and email with this link http://www.facebook.com/blahblah/app_97922829890/xuser/23
IS there anyway I can access xuser and its value in my iframe on my Facebook app tab using php in the iframe, so I can display a message personally to them based on their preferences in the DB that is on my server?
Any help will be greatly appreciated!